Alphinaud asks you to assist Alisaie with her search for Imperial patrols.
This quest is available if you have completed the quest How Tataru Got Her Groove Back.
Starting the Quest
Talk to Alphinaud in the House of the Fierce in Yanxia to begin the quest.
Speak with Alisaie
Go east through the archway and go to the quest icon on the map. Talk to Alisaie to proceed.
Search for Imperial Patrols South of Prism Lake
If you have unlocked flying, you can fly up through the opening in the cave to go outside. Otherwise, go northeast through the doorway and follow the path to the outside. Then go north to the orange circle on the map. Check on the sparkling Destination to proceed.
Search Prism Lake for Imperial Patrols
Go north to the orange circle on the map and go just north of the center of the orange circle. Check on the sparkling Destination to proceed.
Go to the quest icon on the map and talk to Alisaie.
Search the Ribbons
Go southeast to the orange circle on the map and talk to the Haunted Elder. Defeat the two Imperial Impostors that attack.
Rendezvous with Alisaie
Go north to the orange circle on the map and talk to Alisaie. There will be a cutscene. This one is important, so it is recommended to watch it either now or via the Unending Journey in an inn room.
Speak with Alisaie Again
Go southwest to where the orange arrow is pointing in the minimap. Talk to Alisaie to complete the quest.
Next Main Scenario Quest
After you complete the quest, talk to Alisaie to accept the next quest: The Limits of Our Endurance.